Railroad-frog.



C. C. CHAMBERS.

RAILROAD PROG.

IIIIIIIIIIIIIIII 11111115.1911.

11,002,964 v Patenteasept. 12,1911.

' Z0 @ya f nl PLANGRAPH CO..WASHINGTON,U..

oNrrED srrfTEsrTENT oFFioE t CONNOR C. CHAMBERS, OF CHICAGO, ILLINOIS.

RAILROAD-FROG'.

To all whom it may concern:

Be it known that I, CONNOR C. CHAix/IBERS, a citizen of the UnitedStates, and a resident of the city of Chicago, county of Cook, and Stateof Illinois, have invented certain new and useful Improvements inRailroad- Frogs, of which the following is a specification.

My invention relates to improvements in frogs used in railroadconstruction and has for its object the production of a device of thischaracter which will be of improved construction and efficient inoperation.

Other objects will appear hereinafter.

Vlith these objects in view my invention consists in a railroad frogcharacterized as above mentioned and in certain details of constructionand arrangement of parts as will be hereinafter fully described and moreparticularly pointed out in the appended claims.

My invention will be more readily understood by reference to theaccompanying drawings forming a part of this specification, and inwhich,

Figure 1 is a perspective view of a railroad frog embodying myinvention, Fig. 2 is a fragmentary detail section taken on substantiallyline oc-az of Fig. 1, and Fig. 3 is a fragmentary section taken on liney-f/ of Fig. 2.

The preferred form of my construction as illustrated in the drawingscomprises a metallic block 1 which is preferably of the peripheral formshown, said block being poured about the adjacent ends of rails 2. Thelatter may be of any ordinary construction or design, that illustratedbeing a conventional grooved rail; said rails projecting from said blockany suitable distance for connection with adjacent rail sections of thetrack. The block 1 is shown formed solid but it is understood that ifdesired the same may be cored to reduce the weight thereof. Formed inthe upper side of the block 1 are grooves 3 which register as shown withthe grooves formed in the upper sides of said rails 2. Also formed inthe upper side of the block 1 centrally therein is a recess 4 preferablyrectangular in outlin-e and comparatively shallow. Arranged in therecess e is a wear-plate 5, the same being of such dimensions and ofsuch formation as to be adapted to be snugly received in said recess;the construction being such however that removal of said wear-Speccation of Letters Patent.

Application filed May 5, 1911.

Patented Sept. 12, 1911.

serial No. 625,302.

plate in order to effect renewal thereof may be readily effected. Saidwear-plate is formed of a suitable hardened metal and is provided in itsupper side with grooves 3 which register with the grooves 3 in theblock 1. Formed at the periphery of the wear-plate 5 preferably at eachside thereof is a downwardly and outwardy projecting finger 6; thefingers 6 engaging slots 7 formed for the reception thereof in theadjacent portions of t-he block 1. The slots 7, as will be observed,open laterally as well as upwardly, wedge members 8 being insertedtherein into engagement with the upper sides of the fingers 6. Saidwedge members 8 are formed with inclined shoulders 9 adjacent theirupper ends, said shoulders 9 engaging against correspondingly formedsurfaces of said slots so that when said wedges are driven inwardly thesame will be forced downwardly against the fingers 6 to securely fastenthe plate 5 in position. Thus the latter is detachably secured inoperative position in the block. The wedge members 9 are locked inposition by means of wedge members 10 which are inserted into slots 11provid-ed in the eX- teriorly projecting outer ends of the fingers 6,said wedge members 1() abutting against the outer ends of the wedgemembers 8 as clearly shown in Fig. 2. Cotter pins 12 removably arrangedin the lower ends of the wedge members 10 for engagement against theunder sides of the projections 6 serve to lock said wedge members 10against accidental displacement.

With a construction as set forth then, it will beobserved that thewear-plate 5 is secured in the block 1 in such a manner as to be adaptedto be readily and expeditiously removed and upon the same becoming wornor otherwise disabled another plate of similar design may be readily andquickly arranged in its place. The construction is such that the plate 5may at all times be rigidly secured in position, provision being made toeffect this purpose by reason of the peculiar construction of the wedgemembers 8. If it is desired to elevate the wear-plate, a sheet or plateof metal may be arranged thereunder upon the bottom of the recess 4. Inremoving the wear-plate the wedge members 10 after removal of the cotterpins 12 are rst withdrawn. The wedge members 8 are then removedwhereupon removal of the plate 5 may be readily and quickly effect'ed bytapping upon the eXteriorly projecting ends of the fingers 6.

A railroad frog of the construction set forth is durable and economical,and through its provision an intersection may be renewed withoutnecessitating the renewal of the entire frog, renewal of theintersection being effected economically and expeditiously in the mannerabove described.

While I have illustrated and described the preferred form for carryingmy invention into effect, this is capable o'f variation and modificationwithout departing from the spirit of the invention. I therefore do notwish to be limited to the precise details of construction set forth, butdesire to avail myself of such variations and modifications as comewithin the source of the appended claims.

Having described my invention what I claim as new and desire to secureby Letters Patent is:

l. In a. railroad frog, the combination of a base block having wheelflange grooves and a central recess formed in the upper side thereof; awear-plate arranged in said recess and having grooves in its upper sideregisf tering with the grooves in said base block;

downwardly and outwardly projecting iingers provided at the periphery ofsaid wearplate engaging slots in the adjacent portions of said block;and wedge members adapted to be driven into said slots into engagementwith the upper sides of said lingers for removably securing saidwearplate in position in said recess, substantially as described.

2. In a railroad frog, the combination of a base block having wheelflange grooves and a central comparatively shallow recess formed in theupper side thereof; a wear-plate arranged in said recess and havinggrooves in its upper side registering with the grooves in said baseblock; outwardly extending projections formed upon said plate at theperiphery thereof engaging slots formed for the reception thereof in theadjacent portions of said base block; and wedge members adapted to bemoved horizontally into engagement with said slots to engage against theupper sides of said projections for removably securing said wearplate inposition in said recess, substantially as described.

3. In a railroad frog, the combination of a base block having wheelflange grooves and a central comparatively shallow recess formed in theupper side thereof; a wearplate arranged in said.recess and havinggrooves in its upper side registering with the grooves in said baseblock; a plurality ofoutwardly extending projections formed upon saidplate at the periphery thereof engaging slo-ts formed for the receptionof said projections in the adj aeent portions of said block; wedgemembers adapted to be moved horizontally inwardly into engagement withsaid slots to engage against the upward sides of said projections,inward movement of said wedge members effecting depression of saidprojections; and means for locking said wedge members in ope 1ativeposition, substantially as described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

CONNOR C. CHAMBERS.

Witnesses HELEN F. LILLIs, JOSHUA R. H. Po'r'rs.

Copies of this patent may be obtained for five cents each,by addressingthe Commissioner of Patents, VWashngtoin D. C.

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